Philips 14HT3154 14" professional TV, 35.6 cm (14"), 4:3, 4:3, 37 cm, 34 cm, 125 channels Philips 14HT3154 14" professional TV. Display diagonal: 35.6 cm (14"), Aspect ratio: 4:3, Screen format adjustments: 4:3. Channels quantity: 125 channels. Headphone connectivity: 3.5 mm. Power consumption (typical): 36 W, Power consumption (standby): 5 W. Teletext: 1 pages